Violarite (original) (raw)

Colour:

Violet gray, copper red, light gray, or steel gray

Specific Gravity:

4.79 (Calculated)

Name:

From Latin "viola", violet, alluding to the color of the mineral, especially if viewed with a reflected-light microscope.

Long-form identifier:

mindat:1:1:4187:0

9522ede3-a792-4704-8434-62d16c3a0c7b

Approved, 'Grandfathered' (first described prior to 1959)

Type description reference:

2.DA.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4

2.10.1.8

2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4

3.11.8

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
11 : Sulphides etc. of Ni

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Colour:

Violet gray, copper red, light gray, or steel gray

Hardness:

VHN100=455 - 493 kg/mm2 - Vickers

Cleavage:

Perfect
Perfect on {001}

Density:

4.79 g/cm3 (Calculated)

Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 46.6%.

Colour in reflected light:

distinctly violet

Mindat Formula:

Fe2+Ni3+2S4

Class (H-M):

m_3_m _(_4/_m_32/m ) - Hexoctahedral

Cell Parameters:

a = 9.51 Å

Unit Cell V:

860.09 ų (Calculated from Unit Cell)

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ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0001000	Violarite	Vaughan D J, Craig J R (1985) The crystal chemistry of iron-nickel thiospinels American Mineralogist 70 1036-1043		1985	0	293
0004230	Violarite	Tenailleau C, Etschmann B, Ibberson R M, Pring A (2006) A neutron powder diffraction study of Fe and Ni distributions in synthetic pentlandite and violarite using 60Ni isotope American Mineralogist 91 1442-1447		2006	synthetic	0	293
0004231	Violarite	Tenailleau C, Etschmann B, Ibberson R M, Pring A (2006) A neutron powder diffraction study of Fe and Ni distributions in synthetic pentlandite and violarite using 60Ni isotope American Mineralogist 91 1442-1447		2006	synthetic	0	293
0004232	Violarite	Tenailleau C, Etschmann B, Ibberson R M, Pring A (2006) A neutron powder diffraction study of Fe and Ni distributions in synthetic pentlandite and violarite using 60Ni isotope American Mineralogist 91 1442-1447		2006	synthetic	0	293
0004233	Violarite	Tenailleau C, Etschmann B, Ibberson R M, Pring A (2006) A neutron powder diffraction study of Fe and Ni distributions in synthetic pentlandite and violarite using 60Ni isotope American Mineralogist 91 1442-1447		2006	synthetic	0	293
0004234	Violarite	Tenailleau C, Etschmann B, Ibberson R M, Pring A (2006) A neutron powder diffraction study of Fe and Ni distributions in synthetic pentlandite and violarite using 60Ni isotope American Mineralogist 91 1442-1447		2006	synthetic	0	293
0004235	Violarite	Tenailleau C, Etschmann B, Ibberson R M, Pring A (2006) A neutron powder diffraction study of Fe and Ni distributions in synthetic pentlandite and violarite using 60Ni isotope American Mineralogist 91 1442-1447		2006	synthetic	0	293
0004236	Violarite	Tenailleau C, Etschmann B, Ibberson R M, Pring A (2006) A neutron powder diffraction study of Fe and Ni distributions in synthetic pentlandite and violarite using 60Ni isotope American Mineralogist 91 1442-1447		2006	synthetic	0	293
0004237	Violarite	Tenailleau C, Etschmann B, Ibberson R M, Pring A (2006) A neutron powder diffraction study of Fe and Ni distributions in synthetic pentlandite and violarite using 60Ni isotope American Mineralogist 91 1442-1447		2006	synthetic	0	293

CIF Raw Data - click here to close

Reference:

Lindgren, W., Davy, W.M. (1924) Nickel ores from the Key West mine, Nevada. Economic Geology: 19: 309-319.

Other Members of this group:

Associated Minerals Based on Photo Data:

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Reference List:

Tenailleau, C., Pring, A., Tschmann, B., Brugger, J., Grguric, B., Putnis, A. (2006) Transformation of pentlandite to violarite under mild hydrothermal conditions. American Mineralogist: 91: 706-709.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.